I've been trying to work with Nav4All on my BB8830 (with puck). I can't figure out how to use the softkeys that show up on screen - they don't match to any specific keys on my 8830 (or when they do they don't work properly). Has anyone figured this out?

I've just been trying to evaluate Nav4All. I had low expectations before I started and I haven't been dissappointed! What a pile of rubbish!

Have you tried Wayfinder?. That is much better.